What are the consequences of a minor milk allergy? Should I just drink it?

So, I seem to be mildly milk/lactose intolerant. A few months ago I tested this by consumed a variety of milks (whole, skimmed, non homogenised), over a period of days and all I can remember is terrible gas and concluding I was milk intolerant. Yesterday I drink a litre of goats milk, within 10 minutes, on an empty stomach which made me feel slightly nauseous and mildly gassy. If I drink a 82% protein whey drink (with banana and water) it gives me moderate gas but no other symptoms.

So the reason I'm asking is because I'm doing weight lifting again and its pretty imperative I get that 1g of protein per lb of lean body weight. But non dairy sources of protein are significantly more expensive and less convenient, and I'm currently struggling to hit the protein target. Thus I'm wondering if I should just drink a litre of milk a day in addition to a protein heavy breakfast, lunch and dinner just to get some more protein and calories.

My problem comes with the potentially ill health effects though. I can deal with gas and nausea but if a drinking milk on a milk allergy leads to long term health problems, I wouldn't do it.

So, I seem to be mildly milk/lactose intolerant. [...] its pretty imperative I get that 1g of protein per lb of lean body weight. But non dairy sources of protein are significantly more expensive and less convenient, and I'm currently struggling to hit the protein target. Thus I'm wondering if I should just drink a litre of milk a day [...]

So what do you think?

Can't you just drink cream instead? Or eat something else, if you don't like milk? Besides, you aren't a calf or a pig. There have to be better sources of nutrition for you than masses of milk that you don't even like and think you are allergic to. How about lamb?

Mature goat's cheese is low in lactose. You might find you tolerate that well enough in small quantities. e.g. try adding 20 g to an omelette or to a meat dish. As a minor component to a meal you will tolerate it better ... alternatively eat a chunk after a meal as a 'desert'.